add internal_err! macro to replace some unwrap()

src/lib.rs

@@ -43,10 +43,12 @@ async fn default_route(_req: Request, _url: Url) -> MyResult<Response> {
 }
 
 async fn hello_world(_req: Request, _url: Url) -> MyResult<Response> {
-    Ok(Response::new_with_opt_str_and_init(
-        Some("Hello, world from Rust"),
-        ResponseInit::new().status(200)
-    ).unwrap())
+    internal_err!(
+        Response::new_with_opt_str_and_init(
+            Some("Hello, world from Rust"),
+            ResponseInit::new().status(200)
+        )
+    )
 }
 
 #[wasm_bindgen]

src/sn.rs

@@ -47,18 +47,21 @@ async fn get_actions(_req: Request, url: Url) -> MyResult<Response> {
         actions
     };
 
-    Ok(Response::new_with_opt_str_and_init(
-        Some(&serde_json::to_string(&info)
-            .map_err(|_| Error::InternalError())?),
-        ResponseInit::new()
-            .status(200)
-            .headers({
-                let headers = Headers::new().unwrap();
-                headers.set("Content-Type", "application/json").unwrap();
-                cors!(headers);
-                headers
-            }.as_ref())
-    ).unwrap())
+    internal_err!(
+        Response::new_with_opt_str_and_init(
+            Some(&internal_err!(
+                serde_json::to_string(&info)
+            )?),
+            ResponseInit::new()
+                .status(200)
+                .headers({
+                    let headers = Headers::new().unwrap();
+                    headers.set("Content-Type", "application/json").unwrap();
+                    cors!(headers);
+                    headers
+                }.as_ref())
+        )
+    )
 }
 
 pub enum Verb {

src/utils.rs

@@ -25,6 +25,15 @@ macro_rules! cors {
     };
 }
 
+// Ignore any error and return InternalError for them all
+// Used in place of ugly `.unwrap()`.
+#[macro_export]
+macro_rules! internal_err {
+    ($result:expr) => {
+        $result.map_err(|_| crate::utils::Error::InternalError())
+    }
+}
+
 pub type MyResult<T> = Result<T, Error>;
 
 pub enum Error {